BKP1005HM221-T

Chip Ferrite Bead Overview

The Taiyo Yuden BKP1005HM221-T is a multilayer chip ferrite bead in the BK series, designed for power line noise suppression. It features a 0402 (1005 metric) surface-mount package with dimensions of 1 mm length, 0.5 mm width, and 0.5 mm height. The component provides an impedance of 220 Ohms at 100 MHz with a tolerance of ±25%. It supports a maximum DC current of 900 mA and has a maximum DC resistance of 180 mOhms. The operating temperature range spans from -55°C to +85°C.

Chip Ferrite Bead Feature Summary

• Multilayer construction for compact high-current power line filtering
• Low DC resistance design to minimize voltage drop
• Robust thermal stability within specified industrial temperature limits

Chip Ferrite Bead Applications

• Power supply input/output filtering
• Noise suppression on high-current digital signal lines
• Automotive electronic circuit protection

Chip Ferrite Bead Procurement Notes

Verify the specific suffix and revision code against the manufacturer's latest datasheet to ensure compatibility with current production standards. Confirm that the 900 mA current rating aligns with your circuit's peak load requirements. Check for any end-of-life notices or recommended replacement parts if sourcing for long-term manufacturing projects.

Chip Ferrite Bead Selection Notes

Select this component when space constraints require a 0402 footprint but higher current handling than standard signal-line beads offers. Ensure the 220 Ohm impedance at 100 MHz matches the target noise frequency spectrum. Validate that the 180 mOhms DC resistance does not cause unacceptable voltage drops in the power rail under full load conditions.

Chip Ferrite Bead Part Context

This part belongs to Taiyo Yuden's BK series of multilayer chip bead inductors. These components are engineered specifically for power lines, distinguishing them from general-purpose ferrite beads used for signal integrity. The series emphasizes low DC resistance and high current capability within small surface-mount packages.

Chip Ferrite Bead Replacement Considerations

Public confirmed substitute part numbers: LCMGA321616T221NG.